OFDM Relay Cognitive Radio Multiple Antennas Synchronization Channel Estimation Full duplex Resource Allocation CDMA Spectrum Sensing Spectrum Sharing Interference Cancellation Stochastic Geometry Feedback Bi-Directional Neural Networks Energy Harvesting Heterogeneous Networks Equalizer Femtocell FBMC relay networks Equalization Device-to-Device (D2D) HetNet in-band full-duplex system channel capacity TVWS interference suppression GFDM LTE-based V2V interference Handoff mode selection Cell Search Ultra-dense small cell MIMO Vehicle-to-vehicle communication Duplex Ultra Low Power SC-FDMA Channel estimation error 5G Spectral efficiency Ultra-dense small cell networks SINR mismatch problem Idle cells Time-division duplex User association inter user interference Outdated channel estimation WVAN resource block management Power control Capacity On/off algorithm Empty cell System level simulation End-to-end delay CFO SCMA OQAM bursty traffic model Bi-directional full-duplex Heterogeneous channel estimation capability Shortened TTI multi-spectral UWB Poisson arrival Traffic timing misalignment self interference cancellation Timing and frequency offset ultra-dense small cell network QAM telecommunication traffic OCBT cellular radio Short burst transmission antenna arrays 5G mobile communication health care Subband filtering intercarrier interference intersymbol interference Zigbee body area networks power uncertainty Uplink SCMA system frame structure Waveforms UFMC MPA detector Full-duplex Spatial capacity quality of service Number of training blocks Reliability Communication range amplify and forward communication mMTC